[ Idioms ]
Scientists will break ___ in their search for new sources of energy.
a. up
b. through
c. out
Select your answer:
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Sentences Function and StructurePresent SimpleSubject Verb Agreement Irregular VerbAdverbial Clause of ConcessionAuxiliary ModalModal and Phrasal VerbsTransitional WordsComparisionIELTS VocabularyGrammar Pronoun and Singular Plural NounOther quiz:
Future Tenses › ViewThey’re meeting on Saturday.
A. arrangement
B. fixed event
Vocabulary › View
the natural or logical results of an action or condition
A. consequences
B. defy
C. array
D. sparsely